We have all suffered the feeling of frustration at what in our eyes is an act of injustice and touches us so deeply because in general we were educated by the sense of justice as a convention and a human search aimed at creating a society with consequences for that which breaks the balance of coexistence. However, when the visceral engine comes from hatred or resentment, we are talking about that thirst that has driven great tragedies throughout the history of humanity: revenge.